/Engine/Source/Editor/PropertyEditor/Public/IDetailsView.h
Set overrides that should be used when looking for packages that contain the given object (used when editing a transient copy of an object, but you need access to th real package)
void SetObjectPackageOverrides ( const [TMap](API\Runtime\Core\Containers\TMap)< [TWeakObjectPtr](API\Runtime\Core\UObject\TWeakObjectPtr)< [UObject](API\Runtime\CoreUObject\UObject\UObject) >, [TWeakObjectPtr](API\Runtime\Core\UObject\TWeakObjectPtr)< [UPackage](API\Runtime\CoreUObject\UObject\UPackage) >> & InMapping )